TWI774622B - Wide bandwidth antenna for 5g millimeter wave - Google Patents

Wide bandwidth antenna for 5g millimeter wave Download PDF

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Publication number
TWI774622B
TWI774622B TW110145542A TW110145542A TWI774622B TW I774622 B TWI774622 B TW I774622B TW 110145542 A TW110145542 A TW 110145542A TW 110145542 A TW110145542 A TW 110145542A TW I774622 B TWI774622 B TW I774622B
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antenna
line segment
frequency band
band units
disposed
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TW110145542A
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Chinese (zh)
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TW202318722A (en
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蘇祐生
林昌暐
李勇廷
簡瑞誌
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大陸商環旭（深圳）電子科創有限公司
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Publication of TW202318722A publication Critical patent/TW202318722A/en

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/48—Earthing means; Earth screens; Counterpoises
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
    • H01Q19/02—Details
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
    • H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/0006—Particular feeding systems
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/30—Combinations of separate antenna units operating in different wavebands and connected to a common feeder system
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/16—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole

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  • Details Of Aerials (AREA)
  • Aerials With Secondary Devices (AREA)
  • Inorganic Insulating Materials (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)

Abstract

A wide bandwidth antenna for 5G millimeter wave is proposed. The wide bandwidth antenna for 5G millimeter wave includes a base board, a first antenna, a second antenna, an impedance matching line and a ground layer. The base board includes a first surface and a second surface. The first antenna includes two first frequency band units, and the two first frequency band units are disposed on the first surface and the second surface, respectively. The second antenna includes two second frequency band units, and the two second frequency band units are disposed on the first surface and the second surface, respectively. The impedance matching line is electrically connected to one of the first frequency band units which is disposed on the first surface. The ground layer is electrically connected to another one of the first frequency band units which is disposed on the second surface. When the first antenna is operating, the second antenna is viewed as a director. When the second antenna is operating, the first antenna is viewed as a reflector. Thus, the wide bandwidth antenna for 5G millimeter wave of the present disclosure provides a bandwidth which can cover the 5G millimeter wave new radio frequency band.

Description

應用於5G毫米波的寬頻天線Broadband Antenna for 5G mmWave

本發明係關於一種寬頻天線，特別是關於一種應用於5G毫米波的寬頻天線。The present invention relates to a broadband antenna, in particular to a broadband antenna applied to 5G millimeter waves.

為了達成更高的傳輸速率，5G通信系統發展出了新空中介面(New Radio；NR)，而新空中介面NR的其中一頻率範圍為FR2(Frequency Range 2)，此頻率範圍FR2的低頻範圍是24.25GHz~29.5GHz，高頻範圍是37GHz~43.5GHz，FR2頻率範圍包含毫米波(Millimeter Wave；mmWave)範圍內的頻段。In order to achieve a higher transmission rate, the 5G communication system has developed a New Radio (NR), and one of the frequency ranges of the new radio NR is FR2 (Frequency Range 2). The low frequency range of the frequency range FR2 is 24.25GHz~29.5GHz, the high frequency range is 37GHz~43.5GHz, and the FR2 frequency range includes the frequency band in the millimeter wave (Millimeter Wave; mmWave) range.

目前5G天線較多採用貼片天線，其具有較簡單的結構及較高的指向性，由於貼片天線之頻寬較窄，需仰賴饋入結構與介質設置實現寬頻效果。然而，饋入結構及介質設置之複雜度較高。At present, 5G antennas mostly use patch antennas, which have a simpler structure and higher directivity. Due to the narrow bandwidth of patch antennas, they need to rely on the feeding structure and medium settings to achieve broadband effects. However, the complexity of the feeding structure and medium setup is high.

由此可知，目前市場上缺乏一種低複雜度、高指向性、尺寸較小之應用於5G毫米波的寬頻天線，故相關業者均在尋求其解決之道。It can be seen that there is currently a lack of a broadband antenna with low complexity, high directivity, and small size for 5G mmWave applications on the market, so relevant industry players are all looking for solutions.

因此，本發明之目的在於提供一種應用於5G毫米波的寬頻天線，其在基板的第一表面及第二表面皆設有第一天線的第一頻帶單元及第二天線的第二頻帶單元，涵蓋較大的頻寬範圍。Therefore, the purpose of the present invention is to provide a broadband antenna for 5G millimeter wave, which is provided with a first frequency band unit of the first antenna and a second frequency band of the second antenna on both the first surface and the second surface of the substrate unit, covering a large frequency bandwidth.

依據本發明的結構態樣之一實施方式提供一種應用於5G毫米波的寬頻天線，包含基板、第一天線、第二天線、阻抗匹配線段及接地層。基板包含第一表面及第二表面。第二表面與第一表面反向。第一天線包含二第一頻帶單元。二第一頻帶單元分別設置於第一表面及第二表面。第二天線與第一天線之間具有間隔，且包含二第二頻帶單元。二第二頻帶單元分別設置於第一表面及第二表面。阻抗匹配線段設置於第一表面，並電性連接設置於第一表面之其中一第一頻帶單元。接地層設置於第二表面，並電性連接設置於第二表面之另一第一頻帶單元。其中，當第一天線工作時，第二天線視為一導向器；當第二天線工作時，第一天線視為一反射器。According to one embodiment of the structural aspect of the present invention, a broadband antenna applied to 5G millimeter waves is provided, which includes a substrate, a first antenna, a second antenna, an impedance matching line segment and a ground layer. The substrate includes a first surface and a second surface. The second surface is opposite to the first surface. The first antenna includes two first frequency band units. The two first frequency band units are respectively disposed on the first surface and the second surface. There is an interval between the second antenna and the first antenna, and includes two second frequency band units. Two second frequency band units are respectively disposed on the first surface and the second surface. The impedance matching line segment is arranged on the first surface, and is electrically connected to one of the first frequency band units arranged on the first surface. The ground layer is disposed on the second surface and is electrically connected to another first frequency band unit disposed on the second surface. Wherein, when the first antenna is working, the second antenna is regarded as a director; when the second antenna is working, the first antenna is regarded as a reflector.

藉此，本發明之應用於5G毫米波的寬頻天線在基板的第一表面及第二表面皆設置第一頻帶單元及第二頻帶單元，具有尺寸小、寬頻大及指向性高的特性。Therefore, the broadband antenna for 5G millimeter wave of the present invention is provided with the first frequency band unit and the second frequency band unit on both the first surface and the second surface of the substrate, and has the characteristics of small size, large bandwidth and high directivity.

請一併參照第1圖至第3圖，第1圖係繪示本發明一實施方式之應用於5G毫米波的寬頻天線100之透視示意圖；第2圖係繪示依照第1圖實施方式之應用於5G毫米波的寬頻天線100之第一表面112的示意圖；及第3圖係繪示依照第1圖實施方式之應用於5G毫米波的寬頻天線100之第二表面114的示意圖。應用於5G毫米波的寬頻天線100包含基板110、第一天線120、第二天線130、阻抗匹配線段140及接地層150。基板110包含第一表面112及第二表面114。第二表面114與第一表面112反向。第一天線120包含二第一頻帶單元122。二第一頻帶單元122分別設置於第一表面112及第二表面114。第二天線130與第一天線120之間具有間隔，且包含二第二頻帶單元132。二第二頻帶單元132分別設置於第一表面112及第二表面114。阻抗匹配線段140設置於第一表面112，並電性連接設置於第一表面112之其中一第一頻帶單元122。接地層150設置於第二表面114，並電性連接設置於第二表面114之另一第一頻帶單元122。其中，當第一天線120工作時，第二天線130可視為一導向器(Director)；當第二天線130工作時，第一天線120可視為一反射器(Reflector)。藉此，本發明之應用於5G毫米波的寬頻天線100在基板110的第一表面112及第二表面114皆設置第一頻帶單元122及第二頻帶單元132，具有尺寸小、寬頻大及指向性高的特性。Please refer to FIG. 1 to FIG. 3 together. FIG. 1 is a schematic perspective view of a broadband antenna 100 applied to 5G millimeter waves according to an embodiment of the present invention; and FIG. 3 is a schematic diagram of the second surface 114 of the broadband antenna 100 applied to 5G millimeter wave according to the embodiment of FIG. 1 . The broadband antenna 100 applied to 5G millimeter waves includes a substrate 110 , a first antenna 120 , a second antenna 130 , an impedance matching line segment 140 and a ground layer 150 . The substrate 110 includes a first surface 112 and a second surface 114 . The second surface 114 is opposite to the first surface 112 . The first antenna 120 includes two first frequency band units 122 . The two first frequency band units 122 are respectively disposed on the first surface 112 and the second surface 114 . There is a space between the second antenna 130 and the first antenna 120 , and includes two second frequency band units 132 . The two second frequency band units 132 are respectively disposed on the first surface 112 and the second surface 114 . The impedance matching line segment 140 is disposed on the first surface 112 and is electrically connected to one of the first frequency band units 122 disposed on the first surface 112 . The ground layer 150 is disposed on the second surface 114 and is electrically connected to another first frequency band unit 122 disposed on the second surface 114 . Wherein, when the first antenna 120 is working, the second antenna 130 can be regarded as a director; when the second antenna 130 is working, the first antenna 120 can be regarded as a reflector. Therefore, the broadband antenna 100 applied to 5G millimeter wave of the present invention is provided with the first frequency band unit 122 and the second frequency band unit 132 on both the first surface 112 and the second surface 114 of the substrate 110 , and has the advantages of small size, large bandwidth and directivity. high sexual characteristics.

具體而言，當第一天線120發射訊號時，第二天線130可視為第一天線120之導向器，增加第一天線120於z軸方向的指向性；當第二天線130輻射時，第一天線120可視為第二天線130之反射器，提高增益。藉此，本發明之應用於5G毫米波的寬頻天線100同時將第一天線120與第二天線130設置於基板110，不僅增加第一天線120及第二天線130之頻帶寬度，亦提升z軸方向的指向性及增益。Specifically, when the first antenna 120 transmits a signal, the second antenna 130 can be regarded as a director of the first antenna 120 to increase the directivity of the first antenna 120 in the z-axis direction; when the second antenna 130 When radiating, the first antenna 120 can be regarded as a reflector of the second antenna 130 to increase the gain. Thereby, the broadband antenna 100 applied to 5G millimeter waves of the present invention disposes the first antenna 120 and the second antenna 130 on the substrate 110 at the same time, which not only increases the frequency bandwidth of the first antenna 120 and the second antenna 130 , but also It also improves the directivity and gain in the z-axis direction.

由第1圖至第3圖可知，第1圖及第2圖之x軸方向(出紙面方向)與第3圖之x軸方向(入紙面方向)相反。二第一頻帶單元122分別對稱設置於第一表面112及第二表面114，且二第一頻帶單元122部分彼此相對。二第二頻帶單元132分別對稱設置於第一表面112及第二表面114，且二第二頻帶單元132部分彼此相對。由第2圖可知，第一表面112上設有其中一第一頻帶單元122、其中一第二頻帶單元132及阻抗匹配線段140。阻抗匹配線段140可為一梯形，梯形之平行y軸之相對短邊與第一頻帶單元122連接；梯形之平行y軸之相對長邊連接基板110之邊緣。由第3圖可知，第二表面114上設有另一第一頻帶單元122、另一第二頻帶單元132及接地層150。接地層150自基板110之邊緣向第一頻帶單元122延伸而形成一長方形線段。As can be seen from Figures 1 to 3, the x-axis direction (the direction of the paper exit surface) in the first and second figures is opposite to the x-axis direction (the direction of the paper entry surface) in the third figure. The two first frequency band units 122 are symmetrically disposed on the first surface 112 and the second surface 114 respectively, and the two first frequency band units 122 are partially opposite to each other. The two second frequency band units 132 are symmetrically disposed on the first surface 112 and the second surface 114 respectively, and the two second frequency band units 132 are partially opposite to each other. As can be seen from FIG. 2 , one of the first frequency band units 122 , one of the second frequency band units 132 and the impedance matching line segment 140 are disposed on the first surface 112 . The impedance matching line segment 140 may be a trapezoid, and the opposite short side of the trapezoid parallel to the y-axis is connected to the first frequency band unit 122 ; the opposite long side of the trapezoid parallel to the y-axis is connected to the edge of the substrate 110 . As can be seen from FIG. 3 , another first frequency band unit 122 , another second frequency band unit 132 and a ground layer 150 are disposed on the second surface 114 . The ground layer 150 extends from the edge of the substrate 110 to the first frequency band unit 122 to form a rectangular line segment.

詳細地說，第一天線120可更包含第一饋入點124，第一饋入點124貫穿基板110，並連接接地層150及阻抗匹配線段140。第一饋入點124由阻抗匹配線段140之相對長邊之中線位置沿x軸方向貫穿基板110，並連接至第二表面114之相對於第一表面112之位置。設置於第二表面114之第一頻帶單元122可更包含第一線段a、第二線段b、第三線段c、第四線段d、第五線段e及平行框線段f。第二線段b之一端連接第一線段a。第三線段c平行第一線段a，並連接第二線段b之另一端。第四線段d平行第三線段c。第五線段e垂直連接第三線段c及第四線段d，如第3圖所示。平行框線段f包含二長線段f1及二寬線段f2，二長線段f1平行第二線段b；二寬線段f2平行第一線段a，二長線段f1及二寬線段f2連接並形成一平行四邊形。其中第一線段a、第二線段b及第四線段d之延伸線交會形成一空間，平行框線段f位於空間。In detail, the first antenna 120 may further include a first feeding point 124 , and the first feeding point 124 penetrates through the substrate 110 and is connected to the ground layer 150 and the impedance matching line segment 140 . The first feeding point 124 penetrates the substrate 110 along the x-axis direction from the position of the centerline of the opposite long sides of the impedance matching line segment 140 , and is connected to the position of the second surface 114 relative to the first surface 112 . The first frequency band unit 122 disposed on the second surface 114 may further include a first line segment a, a second line segment b, a third line segment c, a fourth line segment d, a fifth line segment e and a parallel frame line segment f. One end of the second line segment b is connected to the first line segment a. The third line segment c is parallel to the first line segment a and connects the other end of the second line segment b. The fourth line segment d is parallel to the third line segment c. The fifth line segment e vertically connects the third line segment c and the fourth line segment d, as shown in FIG. 3 . The parallel frame line segment f includes two long line segments f1 and two wide line segments f2, the two long line segments f1 are parallel to the second line segment b; the two wide line segments f2 are parallel to the first line segment a, and the two long line segments f1 and the two wide line segments f2 are connected and form a parallel quadrilateral. The intersection of the extension lines of the first line segment a, the second line segment b, and the fourth line segment d form a space, and the parallel frame line segment f is located in the space.

進一步來說，第一線段a之長度L a小於其中一第二頻帶單元132之長度L 132。其中一第二頻帶單元132之長度L 132小於第二線段b之長度L b。第二線段b之長度L b小於第五線段e之長度L e。第五線段e之長度L e小於第四線段d之長度L d。具體而言，基板110的尺寸可為10mm×8mm；長度L 132可為1.2mm；長度L a可為1.12mm；長度L b可為1.62mm；長度L d可為2mm；長度L e可為1.7mm，但本發明不以此為限。 Further, the length La of the first line segment a is smaller than the length L 132 of one of the second frequency band units 132 . The length L 132 of one of the second frequency band units 132 is smaller than the length L b of the second line segment b . The length L b of the second line segment b is smaller than the length Le of the fifth line segment e . The length Le of the fifth line segment e is smaller than the length L d of the fourth line segment d . Specifically, the size of the substrate 110 may be 10 mm×8 mm; the length L 132 may be 1.2 mm; the length La may be 1.12 mm; the length L b may be 1.62 mm ; the length L d may be 2 mm; 1.7mm, but the present invention is not limited to this.

第二天線130可為平面式偶極天線。第二天線130可更包含第二饋入點134，第二饋入點134貫穿基板110，並連接二第二頻帶單元132。第二饋入點134沿x軸方向貫穿基板110並連接二第二頻帶單元132部分彼此相對之處。The second antenna 130 may be a planar dipole antenna. The second antenna 130 may further include a second feeding point 134 , the second feeding point 134 penetrates through the substrate 110 and is connected to the two second frequency band units 132 . The second feeding point 134 penetrates the substrate 110 along the x-axis direction and connects the two second frequency band units 132 where the portions are opposite to each other.

請配合參照第1圖至第4圖，第4圖係繪示依照第1圖實施方式之應用於5G毫米波的寬頻天線100之迴路損失的量測示意圖。第一天線120之頻率為28GHz。第二天線130之頻率為39GHz。第一天線120之頻率應用範圍大於等於23.8GHz，且小於等於30.64GHz。第二天線130之頻率應用範圍大於等於35.94GHz，且小於等於45GHz。第二天線130較第一天線120遠離接地層150。具體而言，第一天線120可為28GHz天線；第二天線130可為39GHz天線，第一天線120及第二天線130之迴路損失可如第4圖所示。量測點m1及m2表示第一天線120之迴路損失為-10dB時的頻率；量測點m3表示第二天線130之迴路損失為-10dB時的頻率。由第4圖可知，第一天線120在頻率為23.8GHz~30.64GHz時，迴路損失小於-10dB。第二天線130在頻率為35.94GHz~45GHz時，迴路損失小於-10dB。藉此，本發明之應用於5G毫米波的寬頻天線100利用第一天線120之偶極天線結構(即第一頻帶單元122之第一線段a、第二線段b、第三線段c、第四線段d及第五線段e)耦合至平行框線段f產生低頻共振，且第二天線130之偶極天線結構(即第二頻帶單元132)產生高頻共振，以達成寬頻及高指向性效果，涵蓋5G毫米波28GHz與39GHz之全頻段，進而供NR頻段之頻率範圍FR2之頻段n257、n258、n259、n260及n261使用。Please refer to FIGS. 1 to 4. FIG. 4 is a schematic diagram illustrating the measurement of the loop loss of the broadband antenna 100 applied to the 5G millimeter wave according to the embodiment of FIG. 1 . The frequency of the first antenna 120 is 28GHz. The frequency of the second antenna 130 is 39 GHz. The frequency application range of the first antenna 120 is greater than or equal to 23.8 GHz and less than or equal to 30.64 GHz. The frequency application range of the second antenna 130 is greater than or equal to 35.94 GHz and less than or equal to 45 GHz. The second antenna 130 is farther from the ground layer 150 than the first antenna 120 . Specifically, the first antenna 120 can be a 28GHz antenna; the second antenna 130 can be a 39GHz antenna, and the loop losses of the first antenna 120 and the second antenna 130 can be as shown in FIG. 4 . The measurement points m1 and m2 represent the frequency when the loop loss of the first antenna 120 is -10dB; the measurement point m3 represents the frequency when the loop loss of the second antenna 130 is -10dB. As can be seen from FIG. 4 , when the frequency of the first antenna 120 is 23.8 GHz to 30.64 GHz, the loop loss is less than -10 dB. When the frequency of the second antenna 130 is from 35.94 GHz to 45 GHz, the loop loss is less than -10 dB. Therefore, the broadband antenna 100 applied to 5G millimeter waves of the present invention utilizes the dipole antenna structure of the first antenna 120 (ie the first line segment a, the second line segment b, the third line segment c, the The fourth line segment d and the fifth line segment e) are coupled to the parallel frame line segment f to generate low frequency resonance, and the dipole antenna structure of the second antenna 130 (ie, the second frequency band unit 132 ) generates high frequency resonance to achieve broadband and high directivity It covers the full frequency range of 28GHz and 39GHz of 5G millimeter wave, and can be used for the frequency range n257, n258, n259, n260 and n261 of the frequency range FR2 of the NR frequency band.

請配合參照第1圖至第6圖，第5圖係繪示依照第1圖實施方式之應用於5G毫米波的寬頻天線100之第一天線120之史密斯圖；及第6圖係繪示依照第1圖實施方式之應用於5G毫米波的寬頻天線100之第二天線130之史密斯圖。第5圖及第6圖中的圓形曲線為電壓駐波比(Voltage Standing Wave Ratio；VSWR)小於等於2(即電壓駐波比≤2)的範圍。由第5圖可知，量測點m1及m2的電壓駐波比VSWR小於等於2；由第6圖可知，量測點m3的電壓駐波比VSWR小於等於2。Please refer to FIGS. 1 to 6. FIG. 5 shows a Smith chart of the first antenna 120 of the broadband antenna 100 applied to the 5G millimeter wave according to the embodiment of FIG. 1; and FIG. 6 shows A Smith chart of the second antenna 130 of the broadband antenna 100 applied to 5G millimeter waves according to the embodiment in FIG. 1 . The circular curves in FIGS. 5 and 6 are the range in which the Voltage Standing Wave Ratio (VSWR) is less than or equal to 2 (ie, the voltage standing wave ratio is less than or equal to 2). It can be seen from Figure 5 that the voltage standing wave ratio VSWR of the measurement points m1 and m2 is less than or equal to 2; it can be seen from Figure 6 that the voltage standing wave ratio VSWR of the measurement point m3 is less than or equal to 2.

請配合參照第1圖、第7圖及第8圖，第7圖係繪示依照第1圖實施方式之應用於5G毫米波的寬頻天線100在操作頻率為28GHz時之電流分布示意圖；及第8圖係繪示依照第1圖實施方式之應用於5G毫米波的寬頻天線100在操作頻率為39GHz時之電流分布示意圖。由第7圖可知，當應用於5G毫米波的寬頻天線100之操作頻率為28GHz時，電流分布於第一饋入點124、阻抗匹配線段140、第一天線120及第二饋入點134。由第8圖可知，當應用於5G毫米波的寬頻天線100之操作頻率為39GHz時，電流分布於第二饋入點134、第二天線130及第一饋入點124。Please refer to FIG. 1, FIG. 7 and FIG. 8. FIG. 7 is a schematic diagram illustrating the current distribution of the broadband antenna 100 applied to 5G millimeter waves according to the embodiment of FIG. 1 when the operating frequency is 28 GHz; and FIG. 8 is a schematic diagram illustrating the current distribution of the broadband antenna 100 applied to the 5G millimeter wave according to the embodiment of FIG. 1 when the operating frequency is 39 GHz. It can be seen from FIG. 7 that when the operating frequency of the broadband antenna 100 applied to the 5G millimeter wave is 28 GHz, the current is distributed in the first feeding point 124 , the impedance matching line segment 140 , the first antenna 120 and the second feeding point 134 . It can be seen from FIG. 8 that when the operating frequency of the broadband antenna 100 applied to the 5G millimeter wave is 39 GHz, the current is distributed in the second feeding point 134 , the second antenna 130 and the first feeding point 124 .

由上述實施方式可知，本發明具有下列優點：其一，本發明之應用於5G毫米波的寬頻天線在基板的第一表面及第二表面皆設置第一頻帶單元及第二頻帶單元，具有尺寸小、寬頻大及指向性高的特性；其二，本發明之應用於5G毫米波的寬頻天線同時將第一天線與第二天線設置於基板，不僅增加第一天線及第二天線之頻帶寬度，亦提升z軸方向的指向性及增益；其三，本發明之應用於5G毫米波的寬頻天線利用第一天線之偶極天線結構(即第一頻帶單元之第一線段、第二線段、第三線段、第四線段及第五線段)耦合至平行框線段產生低頻共振，且第二天線之偶極天線結構(即第二頻帶單元)產生高頻共振，以達成寬頻效果，涵蓋5G毫米波28GHz與39GHz之全頻段，進而供NR頻段之頻率範圍FR2之頻段n257、n258、n259、n260及n261使用。It can be seen from the above embodiments that the present invention has the following advantages: First, the broadband antenna applied to 5G millimeter waves of the present invention is provided with a first frequency band unit and a second frequency band unit on both the first surface and the second surface of the substrate, and has a size The characteristics of small size, large bandwidth and high directivity; secondly, the broadband antenna applied to 5G millimeter wave of the present invention simultaneously arranges the first antenna and the second antenna on the substrate, not only increasing the first antenna and the second antenna The frequency bandwidth of the line also improves the directivity and gain in the z-axis direction; thirdly, the broadband antenna applied to 5G millimeter waves of the present invention utilizes the dipole antenna structure of the first antenna (that is, the first line of the first frequency band unit). segment, the second line segment, the third line segment, the fourth line segment and the fifth line segment) are coupled to the parallel frame line segment to generate low frequency resonance, and the dipole antenna structure of the second antenna (ie the second frequency band unit) generates high frequency resonance, so as to Achieving a broadband effect, covering the full frequency range of 5G millimeter wave 28GHz and 39GHz, and then for the frequency range of NR frequency band FR2 frequency band n257, n258, n259, n260 and n261.

雖然本發明已以實施方式揭露如上，然其並非用以限定本發明，任何熟習此技藝者，在不脫離本發明之精神和範圍內，當可作各種之更動與潤飾，因此本發明之保護範圍當視後附之申請專利範圍所界定者為準。Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention. Anyone skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection of the present invention The scope shall be determined by the scope of the appended patent application.

100:寬頻天線 110:基板 112:第一表面 114:第二表面 120:第一天線 122:第一頻帶單元 124:第一饋入點 130:第二天線 132:第二頻帶單元 134:第二饋入點 140:阻抗匹配線段 150:接地層 a:第一線段 b:第二線段 c:第三線段 d:第四線段 e:第五線段 f:平行框線段 f1:長線段 f2:寬線段 m1,m2,m3:量測點 L 132,L a,L b,L d,L e:長度 100: Broadband antenna 110: Substrate 112: First surface 114: Second surface 120: First antenna 122: First frequency band unit 124: First feed point 130: Second antenna 132: Second frequency band unit 134: Second feed point 140: impedance matching line segment 150: ground layer a: first line segment b: second line segment c: third line segment d: fourth line segment e: fifth line segment f: parallel frame line segment f1: long line segment f2 : wide line segment m1, m2, m3: measuring point L 132 , L a , L b , L d , L e : length

第1圖係繪示本發明一實施方式之應用於5G毫米波的寬頻天線之透視示意圖； 第2圖係繪示依照第1圖實施方式之應用於5G毫米波的寬頻天線之第一表面的示意圖； 第3圖係繪示依照第1圖實施方式之應用於5G毫米波的寬頻天線之第二表面的示意圖； 第4圖係繪示依照第1圖實施方式之應用於5G毫米波的寬頻天線之迴路損失的量測示意圖； 第5圖係繪示依照第1圖實施方式之應用於5G毫米波的寬頻天線之第一天線之史密斯圖； 第6圖係繪示依照第1圖實施方式之應用於5G毫米波的寬頻天線之第二天線之史密斯圖； 第7圖係繪示依照第1圖實施方式之應用於5G毫米波的寬頻天線在操作頻率為28GHz時之電流分布示意圖；及 第8圖係繪示依照第1圖實施方式之應用於5G毫米波的寬頻天線在操作頻率為39GHz時之電流分布示意圖。 FIG. 1 is a schematic perspective view of a broadband antenna applied to 5G millimeter waves according to an embodiment of the present invention; FIG. 2 is a schematic diagram illustrating the first surface of the broadband antenna applied to 5G millimeter waves according to the embodiment of FIG. 1; FIG. 3 is a schematic diagram illustrating the second surface of the broadband antenna applied to 5G millimeter waves according to the embodiment of FIG. 1; FIG. 4 is a schematic diagram illustrating the measurement of the loop loss of the broadband antenna applied to the 5G millimeter wave according to the embodiment of FIG. 1; FIG. 5 is a Smith chart illustrating the first antenna of the broadband antenna applied to 5G millimeter waves according to the embodiment of FIG. 1; FIG. 6 is a Smith chart illustrating the second antenna of the broadband antenna applied to the 5G millimeter wave according to the embodiment of FIG. 1; FIG. 7 is a schematic diagram illustrating the current distribution of the broadband antenna applied to 5G mmWave according to the embodiment of FIG. 1 when the operating frequency is 28 GHz; and FIG. 8 is a schematic diagram illustrating the current distribution of the broadband antenna applied to 5G millimeter waves according to the embodiment of FIG. 1 when the operating frequency is 39 GHz.

100:寬頻天線 100: Broadband Antenna

110:基板 110: Substrate

120:第一天線 120: The first antenna

122:第一頻帶單元 122: first frequency band unit

124:第一饋入點 124: First Feed Point

130:第二天線 130: Second Antenna

132:第二頻帶單元 132: Second frequency band unit

134:第二饋入點 134: Second Feed Point

140:阻抗匹配線段 140: Impedance matching line segment

150:接地層 150: Ground plane

Claims (9)

一種應用於5G毫米波的寬頻天線，包含：一基板，包含：一第一表面；及一第二表面，其與該第一表面反向；一第一天線，包含：二第一頻帶單元，分別設置於該第一表面及該第二表面；一第二天線，其與該第一天線之間具有一間隔且包含：二第二頻帶單元，分別設置於該第一表面及該第二表面；一阻抗匹配線段，設置於該第一表面，並電性連接設置於該第一表面之其中一該第一頻帶單元；以及一接地層，設置於該第二表面，並電性連接設置於該第二表面之另一該第一頻帶單元；其中，當該第一天線工作時，該第二天線視為一導向器；當該第二天線工作時，該第一天線視為一反射器；其中，該第一頻帶單元更包含：一第一線段；一第二線段，該第二線段之一端連接該第一線段；一第三線段，平行該第一線段，並連接該第二線段之另一端；一第四線段，平行該第三線段；一第五線段，垂直連接該第三線段及該第四線段；及 一平行框線段，包含二長線段及二寬線段，該二長線段平行該第二線段，該二寬線段平行該第一線段，該二長線段及該二寬線段連接並形成一平行四邊形；其中，該第一線段、該第二線段及該第四線段之延伸線交會形成一空間，該平行框線段位於該空間。 A broadband antenna applied to 5G millimeter wave, comprising: a substrate, comprising: a first surface; and a second surface, which is opposite to the first surface; a first antenna, comprising: two first frequency band units , respectively disposed on the first surface and the second surface; a second antenna with a space between the first antenna and including: two second frequency band units, respectively disposed on the first surface and the a second surface; an impedance matching line segment disposed on the first surface and electrically connected to one of the first frequency band units disposed on the first surface; and a ground layer disposed on the second surface and electrically connected Connect to another first frequency band unit disposed on the second surface; wherein, when the first antenna is working, the second antenna is regarded as a director; when the second antenna is working, the first The antenna is regarded as a reflector; wherein, the first frequency band unit further comprises: a first line segment; a second line segment, one end of the second line segment is connected to the first line segment; a third line segment, parallel to the first line segment a line segment connecting the other end of the second line segment; a fourth line segment parallel to the third line segment; a fifth line segment vertically connecting the third line segment and the fourth line segment; and A parallel frame line segment, including two long line segments and two wide line segments, the two long line segments are parallel to the second line segment, the two wide line segments are parallel to the first line segment, the two long line segments and the two wide line segments are connected to form a parallelogram ; wherein, the intersection of the extension lines of the first line segment, the second line segment and the fourth line segment form a space, and the parallel frame line segment is located in the space. 如請求項1所述的應用於5G毫米波的寬頻天線，其中，該第一線段之長度小於其中一該第二頻帶單元之長度；其中一該第二頻帶單元之長度小於該第二線段之長度；該第二線段之長度小於該第五線段之長度；及該第五線段之長度小於該第四線段之長度。 The broadband antenna applied to 5G millimeter wave according to claim 1, wherein the length of the first line segment is smaller than the length of one of the second frequency band units; and the length of one of the second frequency band units is smaller than the length of the second line segment The length of the second line segment is less than the length of the fifth line segment; and the length of the fifth line segment is less than the length of the fourth line segment. 如請求項1所述的應用於5G毫米波的寬頻天線，其中該第二天線為一平面式偶極天線。 The broadband antenna applied to 5G millimeter waves according to claim 1, wherein the second antenna is a planar dipole antenna. 如請求項1所述的應用於5G毫米波的寬頻天線，其中，該第一天線更包含：一第一饋入點，貫穿該基板，並連接該接地層及該阻抗匹配線段；及該第二天線更包含：一第二饋入點，貫穿該基板，並連接該二第二頻帶單元。 The broadband antenna applied to 5G millimeter waves according to claim 1, wherein the first antenna further comprises: a first feeding point, penetrating the substrate, and connecting the ground layer and the impedance matching line segment; and the The second antenna further includes: a second feeding point, which penetrates through the substrate and is connected to the two second frequency band units. 如請求項1所述的應用於5G毫米波的寬頻天線，其中，該二第一頻帶單元分別對稱設置於該第一表面及該第二表面；及該二第二頻帶單元分別對稱設置於該第一表面及該第二表面。 The broadband antenna applied to 5G millimeter waves according to claim 1, wherein the two first frequency band units are symmetrically disposed on the first surface and the second surface, respectively; and the two second frequency band units are symmetrically disposed on the the first surface and the second surface. 如請求項1所述的應用於5G毫米波的寬頻天線，其中該二第一頻帶單元部分彼此相對，該二第二頻帶單元部分彼此相對。 The broadband antenna applied to 5G millimeter waves according to claim 1, wherein the two first frequency band unit parts are opposite to each other, and the two second frequency band unit parts are opposite to each other. 如請求項1所述的應用於5G毫米波的寬頻天線，其中該第二天線較該第一天線遠離該接地層。 The broadband antenna applied to 5G millimeter waves as claimed in claim 1, wherein the second antenna is farther from the ground layer than the first antenna. 如請求項1所述的應用於5G毫米波的寬頻天線，其中該第一天線之頻率為28GHz，該第二天線之頻率為39GHz。 The broadband antenna applied to 5G millimeter waves according to claim 1, wherein the frequency of the first antenna is 28GHz, and the frequency of the second antenna is 39GHz. 如請求項8所述的應用於5G毫米波的寬頻天線，其中，該第一天線之頻率應用範圍大於等於23.8GHz且小於等於30.64GHz；及該第二天線之頻率應用範圍大於等於35.94GHz且小於等於45GHz。 The broadband antenna applied to 5G millimeter waves according to claim 8, wherein the frequency application range of the first antenna is greater than or equal to 23.8GHz and less than or equal to 30.64GHz; and the frequency application range of the second antenna is greater than or equal to 35.94 GHz and less than or equal to 45GHz.
TW110145542A 2021-10-27 2021-12-06 Wide bandwidth antenna for 5g millimeter wave TWI774622B (en)

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CN202111253891.8A CN113823907A (en) 2021-10-27 2021-10-27 Broadband antenna applied to 5G millimeter waves

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102208717A (en) * 2010-03-31 2011-10-05 宏达国际电子股份有限公司 Planar dual-direction radiating antenna
TWI682587B (en) * 2018-12-19 2020-01-11 國立交通大學 Miniature high-gain field-type reconfigurable antenna
CN113451768A (en) * 2021-08-30 2021-09-28 广东健博通科技股份有限公司 5G ultra-wideband antenna unit and 5G ultra-wideband dual-polarized antenna

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102208717A (en) * 2010-03-31 2011-10-05 宏达国际电子股份有限公司 Planar dual-direction radiating antenna
TWI682587B (en) * 2018-12-19 2020-01-11 國立交通大學 Miniature high-gain field-type reconfigurable antenna
CN113451768A (en) * 2021-08-30 2021-09-28 广东健博通科技股份有限公司 5G ultra-wideband antenna unit and 5G ultra-wideband dual-polarized antenna

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